Blank book



(No Model.) J. WI NAGLE & T UHALIFOUX.

BLANKBOOK. No. 307,488. Patented Nov. 4,4 1884.

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BLANK BOOK.

SPECIFICATION forming part of Letters Patent No. 307,488, dated'November 4, 1884:. Application iiled May 7, 1883. (No model.)

To all whom, t may concern.-

Be it known that we, JOHN W. N AGLE, a i citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, and ToUssnINr CHALIFOUX, a subject of Great Britain, residing in Chicago afore said, have invented a new and useful Improvement in Blank Books, of which the following is a full, clear, an'd explicit description, reference bein g had to the accompanying drawings, which form a part thereof.

The object of our invention is, to bind a blank book in such manner that it. will open ilat and at any part ot' thebook, so that it can be written in easily and handily, and at the same time be durable and remain in shape after long use.

The invention consists in the particular construction and arrangement of parts to facilitate this object, which will be fully described hereinafter, and denitely pointed out in the claims.

In the accompanying` drawings, Figure l represents a back view of our book before the back-board is attached or leather covering applied. Fig. 2 represents a transverse sectional view upon the line fr m after the book is finished, the back-board and leather covering being applied. Fig. 3 represents a detached broken view of a portion of one of the covers, showing the form in which the under board oi' the cover is made.

In the drawings, A

represents the leaves of the blank-book. They are secured to the ilesher or sheep B in the ordinary manner.

The cover of the book is composed of two or more thicknesses of paperboard, C and C. The flesher or sheep B extends between these paper boards, where it is firmly secured.

D is the back-board of the book.

L is a flexible lining attached to either or both sides of the back-board D, with its edges extending beyond the back-board and firmly connected with the extended edge of the under board of the cover, so as to pass over the joint of the cover to strengthen it.

E represents the leather cover. The under board, C, of the cover extends against the back of the book under the edges ofthe backboard D, while the outer board or boards of the cover do not extend to the back-board, leaving a space between the back-board and the board or boards C of the cover, as shown This space, which a flexible leather in Fig. 2 of the drawings. is ordinarily occupied by connection connecting the back-board with the cover, is made stiff by the under board of the cover, as shown in Fig. 2. Vhen the book is open, this under board of the cover, pressing against the back of the book, causes 6c it to open freely and fully, so that the pages of the book can be Written on their entire width readily and conveniently. The leverage of the under board of the cover upon the edges of the board cover D springs it slightly Open as the book is opened. The under board should not extend any farther in than enough to rest squarely against the edge of the backboard, as shown in Fig. 2 of the drawings, in order that it may not be in the way when the 7o book is shut. The under board, C, ofthe cover has notches F at the corners, which admits of the leather covering falling down in these notches and iittin g closely upon the outer edge ofthe cover. The under boards ofthe cover C, 7 5 byextendingto and undcrtheback-boardDand against the back of the book the entire length of the leaves, prevent the cover from sagging and keep them in place on the book. Our book, bound in this manner, remains substan- 8O tial, keeps its shape, and will open dat, and

is a convenient durable blank book, which can be readily written in the entire width of the page at any part of the book.

Having fully described our invention, what 8 5 we claim, and desire to secure by Letters Pat.- ent, is-

l. The combination of the under board, C, the outer board, C, the iiesher or sheep B, the leaves A, and the cover E, the lesher being 9o attached to the leaves and passing between the boards C and C', theunder board, C, eX.- tending against the inner edge of the leaves, considerably beyond the edge of the outer board, and the ilesher B and cover E extend-'95 ing in and across the depression formed by the said extension of the inner board, substantially a specified and shown.

2. The combination of the leaves A, the inner board, C, and outer board, C, the flesher iOO B, attached to the edges of the leaves and passing under the inner board, the lining L, and the cover Il, the ilesher B, the lining L and the cover' E all coming together to form a joint between the back and lids, as shown.

JOHN W'. N AGLE. TOUSSAINT CHALIFOUX. Witnesses:

A. M. Bns'r, W. C. Gonrins. 

